Cisterns and holding tanks are storage vessels for water, and are common in our region both for irrigation and household usage.

Recent years have seen drier summers and extra storage has become a necessity and/or mandated in some areas. 

The water you consume is in a constant state of transformation affected by seasonal changes, geology, climate fluctuations, and biological factors. This is particularly true for Rain Water Harvesting (RWH) systems as many are unique in design and functionality. 

A cistern must be cleaned to remove sediment, contaminants and  foreign matter. It is a good idea to clean a cistern:

• at least once a year to remove sludge and sediment build-up, or more often if the water looks, smells or tastes different.
• if contaminants such as organic matter (eg., pine needles, pollen, leaves, insects, rodents etc.) and algae bloom get into the cistern.
• after it is installed and sediment needs to be removed from the bottom of the tank.